Transactions

update-crowdloan-end

Update the end block of a non-finalized crowdloan (creator only).

Extends or shortens the contribution window. The new end is re-validated against the current block: it must be in the future and fall within the chain's minimum/maximum crowdloan duration (roughly 7 to 60 days) measured from now. Only the creator may change it, and only while the loan has not been finalized.

Signer	Pallet	Wraps
`coldkey`	Crowdloan	`Crowdloan.update_end`

Parameters

Parameter	Type	Required	Description
`crowdloan_id`	integer	yes	Identifier of the crowdloan, assigned when it was created.
`new_end`	integer	yes	New block number at which the crowdloan stops accepting contributions. Must be in the future and roughly 7-60 days from the current block.

Address parameters (--hotkey, --coldkey, --dest, ...) accept a raw ss58 address, an address-book or proxy-book name, or a local wallet/hotkey name.

CLI

Preview with --dry-run (shows fee, effects, and policy result without submitting), then submit:

btcli tx update-crowdloan-end \
  --crowdloan-id <int> \
  --new-end <int> --dry-run
btcli tx update-crowdloan-end \
  --crowdloan-id <int> \
  --new-end <int> -w my_coldkey

Python

import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.UpdateCrowdloanEnd(crowdloan_id=0, new_end=0)

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)

Or build it by op name, as an agent would:

await client.execute_tool("update_crowdloan_end", {...}, wallet)